1 Astrology
1.1 Origin
the type locality
Australia, Brazil, Burma, Canada, India, Madagascar, Sri Lanka, Tanzania
1.2 Color
Blue, Green
Blue, Violet, Greenish, Brown, Colorless, Colorless, Blue, Violet, Yellow, gray
1.3 Streak
1.4 For which Rashi?
Not Available
Not Available
1.5 Planet
Not Available
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1.6 Element of Planets
Not Available
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1.7 How to Wear?
1.7.1 Finger
Not Available
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1.7.2 Ring Metal
Not Available
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1.8 Energy
Not Available
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1.9 Deities
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1.10 Not to wear with
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1.11 Powers
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1.12 Birthstone
1.12.1 Planetary
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1.12.2 Talisman
Not Available
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2 Physical Properties
2.1 Tenacity
2.2 Solubility
Not Available
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2.3 Durability
Not Available
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2.4 Specific Gravity
3.80-4.152.57-2.66
1
7.18
2.5 Fracture
Uneven, UnevenArthur Thomas, Gemstones (2009)
Subconchoidal, Conchoidal, Brittle
2.6 Cleavage
perfect along [010] and [100]
Fair on {100}, poor on {001} and {010}
2.7 Mohs Hardness
2.8 Chemical Composition
Cu 5(SiO 3) 4(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Mg2Al4Si5O18
3 Optical Properties
3.1 Luster
3.2 Pleochroism
X = very pale blue; Y = pale blue; Z = deep blue
X = pale yellow
3.3 Dispersion
3.4 Transparency
Translucent
Not Available
3.5 Refractive Index
1.752-1.815Not Available
1
3.25
3.6 Optic Character
Not Available
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3.7 Crystal System
Orthorhombic
Orthorhombic
3.8 Birefringence
0.063Not Available
0
0.296
3.9 Clarity
Translucent
Not Available
4 Benefits
4.1 Physical
4.1.1 Neurological
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4.1.2 Cardiovascular
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4.1.3 Respiratory
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4.1.4 Reproductive
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4.1.5 Digestive
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4.2 Psychology
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4.3 Healing
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4.4 Qualities Associated
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